AMERICAN COLEOPTERA. 325 Descriptioni' of new COLEOPTERA of the TJnited States, with notes on known species. BY GEO. H. HORN, M. D. CICINDELA, Linn. C. puritana, n. sp. — Eloi gate, brownish rcneous. Head and thora.x sparsely pilose with white hairs. Ijabrum white, rounded in front with angles obtuse but moderately prominent, occiput punctured and finely rugulose, vertex finely strigose. Thorax slightly broader than long, sides feebly rounded, apical, basal and median grooves moderate. Elytra parallel, twice as broad as long ; a median basal white spot, lateral margin narrowly bordered with white, with oblique subhumeral branch suddenly mucrouate at tip, a median slightly sig-moid fascia, somewhat eonfusec* at middle, and an oblique short subapical hi-nule. Surface moderately densely punctured. Male. — Elytra near apical, three fourths distinctly sinuate and obliquely narrowed to tip which is moderately prominent, distinctly serrulate and spiii-ulose at suture. Female. — Elytra at three fourths deeply sinuate and with a strong acute tooth, obliquely narrowed to apex which is finely serrulate, sub-truncate and at suture slightly prominent. Body beneath smooth sliining, sparsely pilose, and with metallic bluish-green lustre. Trochanters rufous, femora cupreo-cene-ous, tibiae reddish testaceous bluish at tip. Tarsal joints at i)roximaI end red-dish testaceous. Length .46 inch ; 11.5 mm. This species must be referred to the group with ruprasccns, mdcra, etc. It has exactly the color of the latter species and also the mark-ings except that the median band is less sinuous. It differs also in hav-ing the 9 somewhat broader and less parallel, and the elytral sculp-ture rather coarser, the sinuation of the el3'tra deeper and the tooth stronger and more acute in $ and more decidedly truncate at apex. The thorax in mdcra, is longer than broad and in the present species slightly broader than long; cnprascens, differs primarily in color and the female has the sutural angle at apex distinctly retracted and the male has the apical margin serrulate to the sinuation while the present species the margin is serrulate near the sutural margin only.. From the above comparisons it will be seen that the species occupies an in-termediate position to the two above cited, having the color and sculp-ture of one and the sexual characters very nearly of the other. Specimens were collected in southern New Hami)shire and at Spring-tield Massachusetts, and sent me by Mr. S. Henshaw of Boston. CHL5:NIUS, Bonolli. C. viduus, n. sp. — Head oval, black with a slight tinge of purple, coarsely punctured more densely over the eyes and with a broad imi)unctured space from the vertex to the front. AntennfB deep black, basal joint reddish-yellow. Parts of njouth deep black. Thorax black with tinge of j)urplc, densely and rather coarsely punctured, median line finely iinjiressed, basal impressions TRANS. AMKR. EXT. SOC. (42) XO V KMBER, 1871.